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Finding the Fourth Proportional to 516.95, 774.14 and 362.15

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Solution

The fourth proportional to 516.95, 774.14 and 362.15 is: 542.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.95 : 774.14 = 362.15 : x
  2. Step 2: Convert to fraction form
    516.95/774.14 = 362.15/x
  3. Step 3: Cross multiply
    516.95x = 774.14 × 362.15
  4. Step 4: Simplify right side
    516.95x = 280,354.80
  5. Step 5: Solve for x
    x = 280,354.80/516.95
  6. Step 6: Final answer
    x = 542.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.